I had sex for two days unprotected on my period the second and third day of my period then it stopped can I be pregnant my period is usually 7 days.

If you happen to ovulate earlier than the norm, than, yes, it is possible. If you want to lessen the possibility, use birth control every time you engage in sex.

While it is not as normal, yes you can get pregnant while on your period. So now you will have to wait till next month to see if you miss the period then.